How do i get scale 1:100?

[akcol]

I am planing a house and using the meterscale.
When i printing i out 8700 mm (8,7m) turns out to 1200mm (12m). The house is bigger on the print than i wish.
Is there anything i could change in the program? I printing after done a pdf.

[hansmex]

Did you try: File -> Page setup -> Scale -> 1/100

H